Endeostigmata

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Taxonomy

Nanorchestidae Grandjean 1937

Diagnosis

Body globular. Prodorsum with 4 pairs of setae (le, exa, in, exp) and 2 pairs of trichobothria (bo, ro), bo capitate, ro filiform and with latch-like seta le; naso without setae; one pair of lateral eyes and median eye usually present. Labrum tubular, elongate and well sclerotised; chelicerae weakly dentate, each with 2 setae; rutella simple or highly modified; 2–3 pairs of adoral setae and 3 pairs of hypostomal setae; palps with 4–5 free segments. Opisthosoma hypertrichous; 2–3 pairs of genital papillae.

Remarks

Neonanorchestes have been reported at high population densities on beaches.

Similar taxa

Nanorchestes is identical except for having both pairs of trichobothria filiform.

References

• Kethley 1982dKethley 1982d:
  Kethley JB. 1982d. Endeostigmata. pp. 118–120. In: Parker SP, ed. Synopsis and classification of living organisms, Vol. 2. McGraw-Hill, New York.
• Kethley 1990aKethley 1990a:
  Kethley JB. 1990a. Acarina: Prostigmata (Actinedida). pp. 667–756. In: Dindal DL, ed. Soil biology guide. John Wiley & Sons, Brisbane.
• McDaniel and Bolen 1981McDaniel and Bolen 1981:
  McDaniel B, Bolen EG. 1981. A new genus and two new species of Nanorchestidae from Padre Island, Texas (Acari: Prostigmata). Acarologia 22 (3): 253–256.